National Repository of Grey Literature 10 records found  Search took 0.00 seconds. 
Ecological status of Lake Baikal
Mongolova, Marina ; Komendová, Renata (referee) ; Zlámalová Gargošová, Helena (advisor)
The aim of this bachelor thesis was to study the ecological status of Lake Baikal. The research focuses on the main problems related to the impact of human activity on the lake. During the study, data on the hydrochemistry of the lake and its tributaries were analysed and scientific papers on the ecological status of Lake Baikal were reviewed. Based on the data were identified the main types of pollutants and places of their concentration. As a result of this work was obtained a more complete picture of the condition of Lake Baikal and were identified its main problems.
Hydromorphological survey and identification of reference status of the Jizera River
Tomšová, Zuzana ; Matoušková, Milada (advisor) ; Ferbar, Petr (referee)
Long-term and intensive human use of watercourses has led to their considerable degradation. Recently, there has been an effort to improve the ecological status of aquatic ecosystems, based on studies of hydromorphological characteristics of natural watercourses and identification of reference conditions. The aim of this thesis was the hydromorphological survey and an identification of reference conditions of the Jizera River. The selection of sites suitable for identification of reference status was based on pre-set criteria determined on remote sensing data, which eliminated significant anthropogenic impacts on the channel and floodplain. The survey using River Habitat Survey (Environmental Agency, 2003), Hydroecological Monitoring (Langhammer et al., 2014) and REFCON (Šmerousová a Matoušková, 2014a) methods was conducted in selected sites. Sites where hydromorphological conditions correspond with very good class, according to Hydroecological Monitoring, were used for identification of the type-specific reference conditions. Physico-chemical characteristics according to ČSN 757221 (1998) and Rosendorf et al. (2011) and the biological quality element macroinvertebrates according to Opatřilová et al. (2011) were also evaluated. Physico-chemical characteristics reached class I - II (ČSN, 1998) and...
Ecological survey and assessment of streams within European Standards. Application in the Rolava River basin.
Beranová, Zuzana ; Matoušková, Milada (advisor) ; Kliment, Zdeněk (referee)
This thesis deals with implementation of Water Framework Directive (2000/60/EC) in the Czech Republic. The study area was the Rolava River basin in the Ore Mountains (northwest of Bohemia). The ecological status assessment was applied to both - the main stream and relevant tributaries. Available hydrobiological and hydrochemical data enhanced with the field hydromorphological survey using the Hydroecological monitoring (HEM, Langhammer, 2007) were applied in this thesis. Results of the field survey were compared with two ecomorphological methods: LAWA-FS (LAWA, 2000) and EcoRivHab (Matoušková, 2003, 2007). As a final result, it was found out the water body on upper course of the Rolava River achieved good ecological status. Water body on lower course of the Rolava River and of the tributary the Nejdecký Brook were classified as not achieving good ecological status. The Rolava catchment has very specific conditions and huge potential to achieve the good status in the future.
Hydromorphological survey and type specific reference conditions of streams
Tomšová, Zuzana ; Matoušková, Milada (advisor) ; Králová, Magdalena (referee)
The aim of Water framework Directive 2000/60/ES (WFD) is to reach a good ecological status of watercourses which consist of 3 constituents - the biological, physio-chemical and the hydromorphological state. To make these conditions equal among the various countries of the EU, the particular conditions of various watercourses are characterized as deviations from the default "reference status". The reference status corresponds to the natural (or near natural) state without any anthropogenic disturbance (or with only a minor disturbance). These disturbances mean different modification of the watercourses or ways of farming in the proximity of the inundation area. This Bachelor's Thesis studies publications as a basis for defining the hydromorphological - type specific - reference conditions in the WFD (2000/60/ES) context. Issues of classification and typology of watercourses are discussed, as well as the current legislation connected with these issues and the methods of hydromorphological survey in chosen countries. In the last section, possible hydromorphological parameters suitable for the determination of morphologically type-specific conditions are defined in Czech republic. Key words: reference condition, stream typology, ecological status, natural status, near natural status, hydromorphological...
Hydromorphological survey and identification of reference status of the Jizera River
Tomšová, Zuzana ; Matoušková, Milada (advisor) ; Ferbar, Petr (referee)
Long-term and intensive human use of watercourses has led to their considerable degradation. Recently, there has been an effort to improve the ecological status of aquatic ecosystems, based on studies of hydromorphological characteristics of natural watercourses and identification of reference conditions. The aim of this thesis was the hydromorphological survey and an identification of reference conditions of the Jizera River. The selection of sites suitable for identification of reference status was based on pre-set criteria determined on remote sensing data, which eliminated significant anthropogenic impacts on the channel and floodplain. The survey using River Habitat Survey (Environmental Agency, 2003), Hydroecological Monitoring (Langhammer et al., 2014) and REFCON (Šmerousová a Matoušková, 2014a) methods was conducted in selected sites. Sites where hydromorphological conditions correspond with very good class, according to Hydroecological Monitoring, were used for identification of the type-specific reference conditions. Physico-chemical characteristics according to ČSN 757221 (1998) and Rosendorf et al. (2011) and the biological quality element macroinvertebrates according to Opatřilová et al. (2011) were also evaluated. Physico-chemical characteristics reached class I - II (ČSN, 1998) and...
Definition of reference conditions of mountain and submountain streams as a part of ecological survey
Leipeltová, Petra ; Matoušková, Milada (advisor) ; Kliment, Zdeněk (referee)
The present thesis deals with the definition of reference conditions of mountain and submountains streams in selected European countries and on the requirements of the Water Framework Directive 2000/60/EC. Here is presented the Typology of watercourses of Czech Republic and the delimitation of mountain and submountains types in selected locations in the Ore Mountains and the Bohemian Forest. In the second part of the work is solved hydromorphological status of watercourses. Monitoring was conducted on streams Rolava, Černá voda, Křemelná, Slatinný p., Modravský p., Roklanský p. and Javoří p. To evaluate the degree of hydromorphological quality was used Hydroecological monitoring method. The thesis includes a brief assessment of physical-geographic characteristics mentioned flows with emphasis on the runoff regime in their basins. In conclusion, there are identified and defined reference parts of streams and their characteristics. Keywords: reference conditions, typology of streams, hydromorphological status, hydromorphological quality, hydromorphological monitoring, runoff regime
Hydromorphological survey and type specific reference conditions of streams
Tomšová, Zuzana ; Matoušková, Milada (advisor) ; Králová, Magdalena (referee)
The aim of Water framework Directive 2000/60/ES (WFD) is to reach a good ecological status of watercourses which consist of 3 constituents - the biological, physio-chemical and the hydromorphological state. To make these conditions equal among the various countries of the EU, the particular conditions of various watercourses are characterized as deviations from the default "reference status". The reference status corresponds to the natural (or near natural) state without any anthropogenic disturbance (or with only a minor disturbance). These disturbances mean different modification of the watercourses or ways of farming in the proximity of the inundation area. This Bachelor's Thesis studies publications as a basis for defining the hydromorphological - type specific - reference conditions in the WFD (2000/60/ES) context. Issues of classification and typology of watercourses are discussed, as well as the current legislation connected with these issues and the methods of hydromorphological survey in chosen countries. In the last section, possible hydromorphological parameters suitable for the determination of morphologically type-specific conditions are defined in Czech republic. Key words: reference condition, stream typology, ecological status, natural status, near natural status, hydromorphological...
Ecological survey and assessment of streams within European Standards. Application in the Rolava River basin.
Beranová, Zuzana ; Matoušková, Milada (advisor) ; Kliment, Zdeněk (referee)
This thesis deals with implementation of Water Framework Directive (2000/60/EC) in the Czech Republic. The study area was the Rolava River basin in the Ore Mountains (northwest of Bohemia). The ecological status assessment was applied to both - the main stream and relevant tributaries. Available hydrobiological and hydrochemical data enhanced with the field hydromorphological survey using the Hydroecological monitoring (HEM, Langhammer, 2007) were applied in this thesis. Results of the field survey were compared with two ecomorphological methods: LAWA-FS (LAWA, 2000) and EcoRivHab (Matoušková, 2003, 2007). As a final result, it was found out the water body on upper course of the Rolava River achieved good ecological status. Water body on lower course of the Rolava River and of the tributary the Nejdecký Brook were classified as not achieving good ecological status. The Rolava catchment has very specific conditions and huge potential to achieve the good status in the future.
Impact of urbanization on ecological status of the Smržovský creek
Polák, Michal ; Komínková, Dana (advisor) ; Libuše, Libuše (referee)
This thesis handle with the ecological status of Smržovka stream, respectively handle with change of the ecological state of stream due to urbanization. Smržovka stream, concretely the right tributary of significant river Kamenice Jizerské hory Mountains rises in the Jizerské hory Mountains protected landscape area, which is almost intact due to water pollution and gradually flows through an urbanized area with a relatively high level of infrastructure and sources of pollution. For the ecological status assessment of stream were used the following three indicators: hydromorphological mapping, physico-chemical water analysis and evaluation of biological components of makrozoobenthos in terms of saprobity. The work provides information on water quality in the stream with that this unique data can be the basis for the study of other small streams that spring in urban mountainous areas.
Impact of antropogenic activities on ecological status of the Meredský creek
Rosypalová, Hana ; Komínková, Dana (advisor) ; Libuše, Libuše (referee)
The presented thesis deals with the evaluation of the ecological status of small watercourse Meredský creek situated in Central Bohemia. Meredský creek springs in the village of Záborná Lhota, runs through the village of Chotilsko and behind the village of Čím empties into the river Vltava. This creek is affected by the urbanization, in the catchment area there is continual livestock grazing and there are several bigger water areas and smaller ponds situated on the creek. The landscape is completed by the mixed and coniferous forests and meadows. The evaluation rate of the pollution was determined according to the selected physical and chemical indicators of the water quality directly in the flow or evaluated in the laboratory conditions, biological status was determined by the community of aquatic macroinvertebrates (saprobity index, ASPT index, BMWP score, Margalef´s diversity index) and hydromorpohological status (average status) was evaluated too. The final ecological status was evaluated according to the Czech State Standard 75 7221 and requirements given by the environmental quality standards. Concentrations of ammonia, total phosphorus, nitrates, chlorides, dissolved oxygen were accomplished as not meeting environmental quality standards. According to the saprobity index, ASPT index, BMWP score water quality is average. Meredský creek reached the 3rd Class of hydromorphological status. According to the chemical status final ecological status is established as not meeting the requirements of the environmental quality standards and general measures leading to the better ecological status are suggested.

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